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Rotary drilling permanent steel casing cast-in-place pile and construction method
The invention relates to a rotary drilling permanent steel casing cast-in-place pile and a construction method. Comprising an arc-shaped clamping plate steel casing positioning temporary fixing structure, a construction platform lower hanging type guide frame, a steel casing and reinforcement cage positioning frame connecting system, an unpoured steel casing type steel frame connected temporary fixing structure, a quicksand stratum double-casing auxiliary rotary excavating hole forming system and a safety protection operation platform steel casing lengthening system. The steel casing positioning temporary fixing structure has the beneficial effects that through the arc-shaped clamping plate steel casing positioning temporary fixing structure, steel reinforcement cage welding construction before steel casing lowering is achieved, the steel casing is rotated after steel reinforcement cage welding is completed, the arc-shaped clamping plates with holes are rotated to the corners of the rectangular guide frame, then the steel casing can continue to be lowered, operation is easy, materials are easy to obtain, and the temporary fixing and installing effect is good; the construction platform lower hanging type guide frame is adopted for steel casing hoisting construction, the steel casing installation perpendicularity is improved, and the steel casing hoisting construction quality is guaranteed.
本发明涉及一种旋挖成孔永久钢护筒灌注桩及施工方法，包括弧形卡板钢护筒定位临时固定结构、施工平台下挂式导向架、钢护筒与钢筋笼定位架连接体系、未灌注钢护筒型钢架连体临时固定结构、流砂地层双护筒辅助旋挖成孔体系和安全防护操作平台钢护筒接长体系。本发明的有益效果是：通过弧形卡板钢护筒定位临时固定结构，实现钢护筒下放前焊接钢筋笼施工，钢筋笼焊接结束后旋转钢护筒使带孔弧形卡板转至矩形导向框边角，即可继续下放钢护筒，操作简单，材料易获取，临时固定安装效果好；采用施工平台下挂式导向架进行钢护筒吊放施工，提高了钢护筒安装垂直度，保证了钢护筒吊放施工质量。
Rotary drilling permanent steel casing cast-in-place pile and construction method
The invention relates to a rotary drilling permanent steel casing cast-in-place pile and a construction method. Comprising an arc-shaped clamping plate steel casing positioning temporary fixing structure, a construction platform lower hanging type guide frame, a steel casing and reinforcement cage positioning frame connecting system, an unpoured steel casing type steel frame connected temporary fixing structure, a quicksand stratum double-casing auxiliary rotary excavating hole forming system and a safety protection operation platform steel casing lengthening system. The steel casing positioning temporary fixing structure has the beneficial effects that through the arc-shaped clamping plate steel casing positioning temporary fixing structure, steel reinforcement cage welding construction before steel casing lowering is achieved, the steel casing is rotated after steel reinforcement cage welding is completed, the arc-shaped clamping plates with holes are rotated to the corners of the rectangular guide frame, then the steel casing can continue to be lowered, operation is easy, materials are easy to obtain, and the temporary fixing and installing effect is good; the construction platform lower hanging type guide frame is adopted for steel casing hoisting construction, the steel casing installation perpendicularity is improved, and the steel casing hoisting construction quality is guaranteed.
本发明涉及一种旋挖成孔永久钢护筒灌注桩及施工方法，包括弧形卡板钢护筒定位临时固定结构、施工平台下挂式导向架、钢护筒与钢筋笼定位架连接体系、未灌注钢护筒型钢架连体临时固定结构、流砂地层双护筒辅助旋挖成孔体系和安全防护操作平台钢护筒接长体系。本发明的有益效果是：通过弧形卡板钢护筒定位临时固定结构，实现钢护筒下放前焊接钢筋笼施工，钢筋笼焊接结束后旋转钢护筒使带孔弧形卡板转至矩形导向框边角，即可继续下放钢护筒，操作简单，材料易获取，临时固定安装效果好；采用施工平台下挂式导向架进行钢护筒吊放施工，提高了钢护筒安装垂直度，保证了钢护筒吊放施工质量。
Rotary drilling permanent steel casing cast-in-place pile and construction method
旋挖成孔永久钢护筒灌注桩及施工方法
LU XUMING (author) / WEN ZHIJI (author) / LIU YUANDONG (author) / WU XIONGLIANG (author) / XIANG FEIYAN (author)
2024-05-03
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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